Self-supporting lining for jordan-engine shells



1,643,368 Sept- 27, 1927' A. LE R. BOLTON SELF SUPPORTING LINING FOR JORDAN ENGINE SHELLS Filed Oct. 12, 1925 3 Sheets-Sheet 1 Sept. 27 1927. 1,643,368

A. LE R. BOLTON SELF SUPPORTING LINING FOR JORDAN ENGINE SHELLS Filed Oct. 12, 1925 3 Sheets-Sheet 2 162 X i 25% BY W ATTORNEY/A".

1,643 368 Sept. .27, 1927. A- R- BOLTON SELF SUPPORTING LINING FOR JORDAN ENGINE SHELLS Filed Oct. 12, 1925 3 Sheets-Sheet 3 IN VEN TOR. W7 i j wp %%ITEQ Patented Sept. 27, 1921.

um'rso s'rATss PATENT OFFICE.

1m LB BOY BOLTON, 01' NORTH ANDOVER, MASSACHUSETTS, ASSIGHOB TO JOHN W. BOLTON AND SONS, ma, LAWRENCE, MASSACHUSETTS, A CK')RIOII.A'.I.ION OF BILF-SUPPOBTIll'G LI INING FOB JORDAN-ENGINE SHELLS.

Application fled 0mm 12, 1925. semi No. 61,873.

This invention relates to paper makin machinery, and particularly to the shells 0 what are known as Jordan engines. A Jordan engine comprises a frustro-conical plug 5 having bars on its surface which revolves inside of a shell of frustro-conical shape, from the inside of which project knives which cooperate with the bars on the plug.

. The knives and the wooden separators, or

i l woods by which they are separated, wear out more rapidly than the fixed or permanent shell, and it is necessary from time to time to replace them in the shell.

Usually the removing of the old knivesl5 and separators, and re acing of new ones is done at the paper m' l, or the shellis removed and shipped to a machine shop where the replacement is made. In either case the Jordan epagine is out of operation during that peri" 'As usually made, the knives are-bent at an angle, and their cross section is rectangular, that is the top and bottom walls are parallel and the side walls are parallel. On

ithe other hand the separators are made so that in cross section they resemble a keystone.

As usually inserted the hives and,sepaiators are alternately placed, and at intervals wooden wedges are driven in between two separators which have fiat faces substantially arallel so as to bind the whole built up filling in place. As the knives have parallel faceshowever they are kept in P081- tion onl by friction of the separators which :pwell when they come in contact with the wet paper stock.-

, However there is danger that the knives will slip inward, and to avoid this, various expedients have been tried.

Abbe in his Patents No. 247.286, Sept. 20, 1881, and 238.545. March 8. 1881 proposes to string knives and separators on curved rods or wires on which are nuts, whereb they can be forced together, while Martin ale in his Patent No. 1,494,265, of May 13, 1924, proposes to make coinciding notches in the separators and knives, and to fill these with Babbitt metal, or to pass thro h a wire and till in with babbitt, thus holding the parts for rigidly in posit-ion so that the whole filling can be bodily transported in the same manner that is indicated by Bahr in his Patent No. 1,133,215, of Mar. 23, 1915, who uses a one-piece inte ral filling. 5s

Martindales ives and separators cannot move laterally.

1 filling built up of metal knives, altermating with wooden separators or woods, has many advantages, among which are the facts no that it is lighter and more elastic.

This invention com rises the manner of holding theknives an separators in a segment of a Jordan engine shell, the method consisting of their intersupporting or interlocking so that no individual knife or separator can slip inward, being held 'by whatever is on eac side, either separator or knife, and cannot slip outward on account of, the shell itself. i

My preferred type of construction includes a bodily transportable thin metal lining shell in which knives and separators have been placed, and which hold each other, as indicated in the last paragraph, from moving inward, and bein prevented from moving outward by the t 'n metal shell.

t is an improvement on my application atent on Removable lining shell for Jor an engines filed June 29, 1922, Serial No. 571,720. pending herewith.

My knives and separators can be tightened and moved laterally with reference to the shell if the wood shrinks, and can therefore be forced to ether circumferentially by wedges as muc as desired.

In the drawings, Fig. 1 is a vertical lo tudinal section of a Jordan engine shell with one of my bodily removable sections fastened in osition.

ig. 2 is a view from the left of Fig. 1 or from the large end of a Jordan engine shell with one of my sections in place.

Fig. 3 is a detail showing the split part of one of m bodily removable sections beas 'fore the we ge is inserted.

Fig. 4 shows a wedge partly driven in. Fig. 5 is an elevation of one starting bar. Fig. 6is an elevation of another starting bar. 100

them projecting while they are being shipped so. that in case the wooden separators dry.

to any extent they may be driven in slightly to keep the organization tight.

Before taking it out of the form, I put in place links such as F. and when this is done the whole organization can be bodily transported to any point desired.

In Fig. 12, I show my interlocking or intersupporting method applied to a fixed shell such as P. In this case I may use only one separators in place.

In this view, I show the knives 82 and the separators 83 as having no ribs nor grooves.

' nor other projections, but the knives as well whereby t as the se arators made of keystone shape ey are intersupporting, if not interlocking. V.

In Fig. 11, I show knives such as 90, each with a groove 91 instead of a rib. while each separator 92 has a rib 93 instead ofa groove.

In Fig. 13, I show in each knife 95. and each wood 96, a groove such as 97 or 98, in which an inde endent key 99 fits.

In Fig. 14, I show woods 100 with plane faces while each knife 101 is provided with points such as 102, which when the wedges are driven in, are forced into the separators, tllius interlocking and supporting them in p ace. v

In F ig. 15, I show a shell 120 which may be of thin metal or of heavy metal or which might be the permanent shell of the engine. It 15 of the usual frustro-conical form and in it? are built up knives 123 which have on each side ribs 124 and the separators 121 with grooves 122.

In this construction the shell is not split and there is no starting bar used, but a tightening wedge 125 is shown as used. If this is a plied to a detachable lining shell, it may be lield in lace a screw 126.

As shown in igs. 16 and 17, I may use a larger number of shorter removable sections 130 and 131 each made of thin metal and each having assembled in it, knives 133 between which are separators 132 the knives having ribs 136 and the separators grooves 137 which interlock and each of which is straight on the edge, instead of being bent.

With this construction, separators which are made entirely of metal can be used and can be driven into position from the large end without the use of starting bars or wed es. When two sections such'as 135, exten 'ng at a different angle from knives 133,

133, are placed together, end to end, the same result is obtained as where each knife in a longer section is bent.

In Fig. 18, I show a thin metal shell 140 which is split'and then spread out as shown lining by the fullline position. While in this tion. the knives 141 having ribs 143, an the separators 142, with grooves 144 are placed alternately, side by side and when all are placed, shell 140 is bent up to the circular position shown by the dotted lines. This forces the ribs into the grooves and holds the whole construction together.

In Fig. 19, the knives 151 and separators 152 are held together by a relatively thin metal band 153 to form a section 150.

In Fig. 20, the knives 158 and separators 159 are held together by two bands of thin metal 156 and 157. one near each end thereby forming a bodily movable section 155.

I claim:

1. The combination in a bodily removable lining for Jordan engine shells of a thin metal segmental section having its strai ht edges bent inward, its smaller curved ge not bent but its larger curved edge bent inward except at a wedge position; with a pluralit v of wooden separators of keystone shape positioned around the inside of the thin metal section, each separator having on each side a groove; a plurality of knives each positioned between two separators, and each having on each side a rib which enters the groove in a separator; and a tightening wedge located between two se arators indline with a wedge position at t e large en 2. The combination in a bodily removable I for Jordan engine shells of a thin meta segmental section having strai ht edges, its smaller curved edge not bent at its larger curved edge bent inward, and hav ing starting bars fixed to its straight edges; with a plurality of wooden separators of ke stone shape positioned around the insic e of the thin metal section, each separator having on each side a groove; a plurality of knives each positioned between two separators, and each having on each side a rib which enters the groove in a separator; and

a tightening wedge located between two separators.

The combination in a bodily removable lining for Jordan engine shells of a thin metal se mental section' having straight edges '11, starting bars fixed thereto; with a plurality of wooden separators positioned rnnged in nlmrnating relation; means to force them together; means to keep them held together; ineens peripherell applied to prevent them from moving ra ielly out t ward; end e'wedge adapted tolbe inserted in the longitudinal opening formed by the split in said frusto-conicel unit and operable expend it radielly when placed in operative ppsition within the casing of the'engine.

5, Niles-11s constitutin e pre-constructed L "er or lining for pulping engines, adapted to be inserted,*expended,and fixedly insinteined within the shell Oil the engine, consisting of e plurality of imstro-conicel split ts, of varying rediel dimensions adopted to register, end to end and form a single unit of uniform frustro-conical form, when nssembled inseries arrangement within the shell of the engine, each of said units comprising in series of interlocking motel knives and separotors, arranged in alternating reletion; meens peripherally applied to prevent the lmives end separators from moving rndielly; means attached to the ends of the lost nemed meens to limit their lateral movement; meens to force them together i into interlocking reletion; a wedge aoepted, to be inserted between the adjacent edges of y and simultaneously efi ect an unhrolren periphery thereon when pieced m operetive position within the casing of the e; end means to secure the series of ts the inside of the shell of the ent The combination with the permanent shell oil it Jordon engine; of as thin metal trentnl section her ing edjoinin straight e1 sterting her fired. st ewe of said streht edges; as fastener by which the thin met section is attached to the permanent ell; e plnrelity of keystone shaped sepe 'retors erreng'ed inside seid thin motel section; plnrelity of knives veech positionedv 7 between two separators the separators and res heg interloc 'ngparts between them; it nghtening wedge; and a fitting we positionedbetween the starting bars. l. Thecombihntion in e hodily removable linin for Jordan engine shells of w thin metelseentel section having adjoining straight ed es; a sterting bar fixed elon ench oi? sei straight edges; as plurnlity o he swne shoped ,seperetors arranged. inside send thin motel section; it plurality of knives eech positioned between two separators the, ,sepereters end hives hevin interloe w :I n; peits between them; and e ti teningw e.

8., The oomhinetion with t e frustro-eoni-i eel shell or e donden engine; of a sterting her fined ineide'thereof; elurali oil sepn errenged around :1 e; oi'fthe shell; n plnrnlity oi mives ench positioned two eeperetors the seperntors end interloelning'perte lost-ween L eeid =lit end operehle to expand said unit I redi neesnee them; means to leternlly force the vet and separators together end againstthe starting bar and to keep them together,

9. The combination with the ermanent shell of e Jorden engine; of s Rain motel segmental section having adjoining straight edges; a starting her fixed at each of said strsi ht edges; a fastener by which the thin mete section is atteched to the permanent shell; a plurality of interlocking knives and wood separators :tl'ternetely positioned around the inside of the thin metal section;

tightening wedges; and e fitting wedge positioned between the sterting bars.

10. The combination in e bodilyremovable lining for Jordan engineshells of nthin,

metal segmental section heving w straight edges; :1 starting bar fixed nlon I each of said straight edges; as plurnlit o substantially alternately disposed inter oching knives and wood separators; end one or more tightening wedges.

11. In a Jordan engine, the oombinetion with a trustro-conical metol shell ha ving-e longitudinal starting her fixed thereto; oil at plurality of (intersupporting hiives end wood separators positioned around the inside of the shell and adjoining the start in her.

12. In a Jordon engine, the combehlon with a'frustro-conical metal shell; ole. phi- 15. In a Jordan engine, the'combinetion with o, trustro-conicel metal shell' of e phirelity -01? knives and members which serve to separate them, eech knife and member be ing of such cross section that it cennot move inward without moving with it both adjoining members or hives orthe adjoining memberand hits. I

16. The combination in a. bodily removable lining for Jordan engine shells of n thin motel segmental section; with n plurelity' or hives and members which serve. to

se arnte them, each knife and member being 0 such cross section that it cannot move inwnrd without moving with it both edjoinin'g members or knives, or the adjoin member and knife, but which can he move circumferentielly; one of snid members being n wedge for tighten; e -vee end hers ngninst enehothen,

net

17. The combination in a bodil removable lining for Jordan engine shells 0 a plurality of knives and members which serve to separate them, each knife and member being of such crosssection that it cannot move inward without moving with it both adjoining members or knives, or the adjoinin member or hire but which can be move circumferentially; with means to prevent said 10 knives and members from moving outward.

18. The combination in a bodil removable lining for Jordan engine shells 0 a plurality of knives and members which serve to separate them, each knife and member being of such form that it cannot move inwardmthout moving with it both adjoining members or knives, or the adjoining member or knife, with means to prevent said knives and members from moiilinf outward.

1 ARC R LE ROY BOLTON." 

